Highly highly highly recommend staying at Patty and Sony's Thong Lo condo. It was very close to amazing restaurants and markets (chicken and rice shop, bbq pork and noodle shop, and mango sticky rice shop were delicious!). The BTS station was a very close and comvient walk, plus easy to figure out.
The pool was incredible. We were in the pool everyday after long days of walking. The front desk and guards were very kind and always said hello to you. The room was very clean and organized as well. Big enough space for three or four people. The laundry machine was helpful since our trip to Thailand was long. The kitchen was well equipped with cooking tools and dining accessories.
This place give you a great location and accommodation. Patty and Sony were very helpful and recommended good places to visit and eat. Thong Lo is a very nice district of the city.